CVE-2018-19023: Hetronic Nova-M prior to verson r161 uses fixed codes that are reproducible by sniffing and re-transmission

Q: How do I fix CVE-2018-19023?

nova-m firmware: upgrade to r161; es-can-hl firmware: upgrade to main_r1864; bms-hl firmware: upgrade to main_r1175. Exact commands for each OS are on this page.

Q: Is CVE-2018-19023 being exploited?

CVE-2018-19023 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-19023 affect?

CVE-2018-19023 affects nova-m firmware, es-can-hl firmware, bms-hl firmware. Severity is high (CVSS 8.8). Hetronic Nova-M prior to verson r161 uses fixed codes that are reproducible by sniffing and re-transmission. This can lead to unauthorized replay of a command, spoofing of an arbitrary message, or keeping the controlled load in a permanent

This month

HIGH 8.8UPGRADEUPGRADEUPGRADE

CVE-2018-19023 is a high-severity flaw (CVSS 8.8) affecting nova-m firmware, es-can-hl firmware, bms-hl firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Hetronic Nova-M prior to verson r161 uses fixed codes that are reproducible by sniffing and re-transmission. This can lead to unauthorized replay of a command, spoofing of an arbitrary message, or keeping the controlled load in a permanent "stop" state.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-294, CWE-287
Published	2019-01-25
Last modified	2026-06-17

Publisher (CNA): ICS-CERT · Vendor: hetronic

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-01-25 20:29 UTCPublished CVE record published
2026-06-17 01:48 UTCUpdated Record last modified

hetronic nova-m firmware UPGRADE

Affected: < r161

Fixed in: r161

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

hetronic es-can-hl firmware UPGRADE

Affected: < main_r1864

Fixed in: main_r1864

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

hetronic bms-hl firmware UPGRADE

Affected: < main_r1175

Fixed in: main_r1175

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

hetronic mlc firmware UPGRADE

Affected: < main_r1600

Fixed in: main_r1600

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

hetronic dc mobile firmware UPGRADE

Affected: < main_r515

Fixed in: main_r515

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2018-19023?

nova-m firmware: upgrade to r161; es-can-hl firmware: upgrade to main_r1864; bms-hl firmware: upgrade to main_r1175. Exact commands for each OS are on this page.

Is CVE-2018-19023 being exploited?

CVE-2018-19023 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2018-19023 affect?

CVE-2018-19023 affects nova-m firmware, es-can-hl firmware, bms-hl firmware. Severity is high (CVSS 8.8). Hetronic Nova-M prior to verson r161 uses fixed codes that are reproducible by sniffing and re-transmission. This can lead to unauthorized replay of a command, spoofing of an arbitrary message, or keeping the controlled load in a permanent

How urgent is CVE-2018-19023?

Priority 45/100. High severity

References

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